The order only acknowledges children born to man and woman “biological progenitors.” How it would affect LGBTQ+ families is one of many questions causing worry and confusion.

A federal judge Thursday blocked President Donald Trump’s executive order outlawing birthright citizenship —the policy automatically giving citizenship to anyone born in the U.S.—and declared it “blatantly unconstitutional,” as legal experts widely believe the president does not have the power to change the policy on his own.

A federal judge on Wednesday is set to hear arguments over temporarily pausing President Donald Trump's executive order seeking to end birthright citizenship for anyone born in the U.S. to someone in the country illegally.